Is there a way to use the device's back and menu buttons (Android phones) from within the Sencha Touch app?

For example, the initial view is a list then clicking on an item displayed details about that item (similar to the Contacts MVC walktrhough). On the details view there is a back button that when tapped displays the list view.

Now instead of tapping the back button on the toolbar on top, can you press the device's built-in back button and let it function the as the on-screen back button?

I think if this works then the app will really feel like a native app.